Com exceção de Carnaúba dos Dantas onde Jair Bolsonaro venceu Haddad por 50,12% contra 49,88%, em todos os outros 23 municípios do Seridó, o petista venceu o presidente eleito Bolsonaro.
Acari
- Haddad – 63,67%
- Bolsonaro – 36,33%
Bodó
- Haddad – 83,46%
- Bolsonaro – 16,54%
Caicó
- Haddad – 64,87%
- Bolsonaro – 35,13%
Carnaúba dos Dantas
- Bolsonaro – 50,12%
- Haddad – 49,88%
Cerro Corá
- Haddad – 78,45%
- Bolsonaro – 21,55%
Cruzeta
- Haddad – 72,91%
- Bolsonaro – 27,09%
Currais Novos
- Haddad – 61,17%
- Bolsonaro – 38,83%
Equador
- Haddad – 68,00%
- Bolsonaro – 32,00%
Florânia
- Haddad – 74,98%
- Bolsonaro – 25,02%
Ipueira
- Haddad – 75,52%
- Bolsonaro – 24,48%
Jardim de Piranhas
- Haddad – 83,86%
- Bolsonaro – 16,14%
Jardim do Seridó
- Haddad – 63,23%
- Bolsonaro – 36,77%
Jucurutu
- Haddad – 77,51%
- Bolsonaro – 22,49%
Lagoa Nova
- Haddad – 75,46%
- Bolsonaro – 24,54%
Ouro Branco
- Haddad – 76,80%
- Bolsonaro – 23,20%
Parelhas
- Haddad – 50,66%
- Bolsonaro – 49,34%
Santana do Seridó
- Haddad – 60,11%
- Bolsonaro – 39,89%
São Fernando
- Haddad – 74,52%
- Bolsonaro – 25,48%
Santana do Matos
- Haddad – 81,12%
- Bolsonaro – 18,88%
São João do Sabugi
- Haddad – 73,86%
- Bolsonaro – 26,14%
São José do Seridó
- Haddad – 72,57%
- Bolsonaro – 27,43%
São Vicente
- Haddad – 67,89%
- Bolsonaro – 32,11%
Serra Negra do Norte
- Haddad – 70,69%
- Bolsonaro – 29,31%
Tenente Laurentino Cruz
- Haddad – 74,77%
- Bolsonaro – 25,23%
Timbaúba dos Batistas
- Haddad – 63,96%
- Bolsonaro – 36,04%